Various systems and methods for controlling dual wastegates via a single wastegate actuator are provided. In one example, a system comprises a first wastegate comprising a first wastegate valve, a second wastegate comprising a second wastegate valve, and a wastegate actuator coupled to each of the f
Various systems and methods for controlling dual wastegates via a single wastegate actuator are provided. In one example, a system comprises a first wastegate comprising a first wastegate valve, a second wastegate comprising a second wastegate valve, and a wastegate actuator coupled to each of the first and second wastegate valves to vary openings of the first wastegate valve and the second wastegate valve according to desired boost.
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1. A method for a multi-turbocharger system, comprising: concurrently adjusting lifts of a first wastegate valve of a first turbocharger and a second wastegate valve of a second turbocharger, separate from the first turbocharger, by adjusting a length between linkage ends of the first and second was
1. A method for a multi-turbocharger system, comprising: concurrently adjusting lifts of a first wastegate valve of a first turbocharger and a second wastegate valve of a second turbocharger, separate from the first turbocharger, by adjusting a length between linkage ends of the first and second wastegate valves via a common actuator, the length including a variable center position which varies relative to a vehicle body frame depending on relative positions of the linkage ends, and the actuator floating relative to the vehicle body frame, the first wastegate valve coupled to the actuator through a first plate via a first linkage and the second wastegate valve coupled to the actuator through a second plate via a second linkage. 2. The method of claim 1, wherein the actuator is slidingly coupled to a rail system, the actuator undergoing translational motion along the rail system, the rail system fixed to the vehicle body frame. 3. The method of claim 2, wherein the actuator changes relative positions of the linkage ends by moving the linkage ends in opposite directions. 4. A twin turbocharger system, comprising: a first turbocharger comprising a first wastegate having a first valve;a second turbocharger comprising a second wastegate having a second valve;a wastegate actuator coupled to the first and second valves through a first plate and a second plate via respective linkages, the first plate and the second plate being attached at respective ends of the linkages and being positioned in a reservoir; the actuator linking the ends of the linkages and adjusting a length between the first plate and the second plate by varying a pressure of one of a fluid or gases within the reservoir, a center position of the length varying relative to a vehicle body frame depending on relative positions of the plates. 5. The twin turbocharger system of claim 4, wherein the wastegate actuator is an electric actuator comprising an electric motor. 6. The twin turbocharger system of claim 4, wherein the wastegate actuator is a pneumatic actuator. 7. The twin turbocharger system of claim 6, wherein the wastegate actuator is coupled to the first valve through a first plate and to the second valve through a second plate, and wherein the pneumatic actuator comprises a vacuum regulator configured to draw pressurized gases from a vacuum source, the vacuum regulator fluidically coupled to the reservoir and configured to vary a position of the first and second plates responsive to a desired boost. 8. The twin turbocharger system of claim 4, wherein the wastegate actuator is a hydraulic actuator. 9. The twin turbocharger system of claim 8, wherein the wastegate actuator is coupled to the first valve through a first plate and to the second valve through a second plate, and wherein the hydraulic actuator comprises a hydraulic regulator configured to draw pressurized fluid from a fluid source, the hydraulic regulator fluidically coupled to the reservoir and configured to vary a position of the first and second plates responsive to a desired boost. 10. A system, comprising: a first wastegate comprising a first wastegate valve;a second wastegate comprising a second wastegate valve; anda wastegate actuator coupled to each of the first and second wastegate valves to vary openings of the first wastegate valve and the second wastegate valve according to desired boost,wherein the first wastegate valve is coupled to the wastegate actuator through a first plate via a first linkage and the second wastegate valve is coupled to the wastegate actuator through a second plate via a second linkage, the first and second plates disposed inside a reservoir, the reservoir configured such that increased fluidic pressure supplied to the reservoir pushes the first and second plates outwardly, decreasing respective lifts of the first wastegate valve and the second wastegate valve, the reservoir configured such that decreased fluidic pressure supplied to the reservoir brings the first and second plates closer together, increasing the respective lifts of the first wastegate valve and the second wastegate valve. 11. The system of claim 10, wherein the first wastegate valve and the second wastegate valve are coupled to the wastegate actuator through an arm via respective linkages, the wastegate actuator adapted to move the arm. 12. The system of claim 11, wherein the respective linkages each comprise a fixed-length arm. 13. The system of claim 10, wherein the reservoir is configured to receive a hydraulic fluid from a hydraulic regulator via tubing, the hydraulic regulator fluidically coupled to a hydraulic fluid source. 14. The system of claim 10, wherein the reservoir is configured to receive pressurized gases from a vacuum regulator via tubing, the vacuum regulator fluidically coupled to a vacuum source. 15. The system of claim 14, wherein the vacuum regulator is fluidically coupled to a vent. 16. The system of claim 10, wherein the reservoir is slidingly coupled to a rail system. 17. The system of claim 10, wherein the first wastegate and the second wastegate comprise a wastegate system, the wastegate system configured to balance the first and second wastegate valves by conveying exhaust pressure acting against the first wastegate valve to the second wastegate valve, and exhaust pressure acting against the second wastegate valve to the first wastegate valve, via one of a common linkage and a pressure reservoir. 18. The system of claim 17, wherein the first and second wastegate valves are positioned at substantially similar lifts by conveying exhaust pressure between the first and second wastegate valves via one of the common linkage and the pressure reservoir.
Herz,Klaus; Frauenkron,Helge; Kuenne,Robert; Holl,Edgar, Method for operating an internal combustion engine having at least two exhaust-gas turbochargers.
Hittle, Craig Phillip; Kilkenny, Jonathan P.; Pierpont, David Andrew; Roozenboom, Stephan Donald, Turbocharger having balance valve, wastegate, and common actuator.
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